2006 FIBA World Championship took place in Japan. However, as he was selected in the 2006 NBA draft by the Minnesota Timberwolves, Mavrokefalidis informed the coach shortly before the outset of the World Championship that he had decided to go back to Minnesota and participate in performance improvement training camps, and thus he lost the team's 12th man roster place to Sofoklis Schortsanitis. In 2011, Mavrokefalidis was given a 2-month suspension from all competitions by the Hellenic Basketball Federation, for refusing to play for Greece's national team for the second consecutive summer. However, two years later, he played with the Greek senior men's national team at the EuroBasket 2013. Career statistics Domestic leagues Regular season |- | 2001–02 | style="text-align:left;"|PAOK | align=left | | 2 || 3.4 || .000 || .000 || .000 || 1.5 || 0.0 || 0.0 || 0.0 || 0.0 |- | 2002–03 | style="text-align:left;"|PAOK | align=left | | 6 || 4.3 || .636 || .000 || 1.000 || 0.8 || 0.1 || 0.3 || 0.1 || 3.0 |- | 2003–04 | style="text-align:left;"|PAOK | align=left | | 19 || 11.3 || .535 || .500 || .861 || 3.6 || 0.4 || 0.3 || 0.4 || 4.9 |- | 2004–05 | style="text-align:left;"|PAOK | align=left | | 14 || 7.0 || .423 || .000 || .562 || 1.7 || 0.1 || 0.2 || 0.1 || 2.2 |- | 2005–06 | style="text-align:left;"|PAOK | align=left | | 26 || 31.5 || .553 || .276 || .796 || 8.1 || 1.0 || 0.7 || 0.5 || 16.5 |- | 2007–08 | style="text-align:left;"|Olympiacos | align=left | | 17 || 9.4 || .534 || .000 || .800 || 2.3 || 0.8 || 0.2 || 0.1 || 3.1 |- | 2008–09 | style="text-align:left;"|Maroussi | align=left | | 26 || 24.2 || .485 || .280 || .811 || 5.7 || 1.1 || 0.6 || 0.5 || 12.0 |- | 2009–10 | style="text-align:left;"|Olympiacos | align=left | | 20 || 15.0 || .644 || .400 || .851 || 2.9 || 0.9 || 0.6 || 0.3 || 7.9 |- | 2010–11 | style="text-align:left;"|Olympiacos | align=left | | 24 || 17.2 || .548 || 1.000 || .790 || 4.2 || 0.7 || 0.5 || 0.5 || 9.0 |- | 2013–14 | style="text-align:left;"|Panathinaikos | align=left | | 25 || 13.3 || .579 || .400 || .756 || 3.7 || 1.2 || 0.3 || 0.2 || 6.8 |- | 2014–15 | style="text-align:left;"|Panathinaikos